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Kate the Mate
Thank you, Radioman. The latest is that the shower upstairs is disconnected and there is now no water hammer upstairs. My husband is at work until Saturday so it will stay disconnected until then, then he'll put it back together and we are expecting that the water hammer will be back there again. Thanks for your suggestion. He's gradually working through the list of all your suggestions. Our boiler man said we may just have to take up floorboards but that's really the last thing we want to do. It's so frustrating as it's only started relatively recently.
